Blow by at breather tube - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

finch1750 · 03-21-2016, 07:34 PM

So took off my GS intake and saw this. Seems excessive especially considering it's the breather tube. I'm at 91k miles NA with a decent amount of aggresive use (canyon, autox, etc).

I don't know a ton about this so coming to you guys for help. Should I be worried about something? Invest in a catch can maybe? Is there a way to check the PCV since that is where most blow by goes from my understanding?

CSG David · 03-21-2016, 07:43 PM

Quote:

Originally Posted by finch1750

So took off my GS intake and saw this. Seems excessive especially considering it's the breather tube. I'm at 91k miles NA with a decent amount of aggresive use (canyon, autox, etc).

I don't know a ton about this so coming to you guys for help. Should I be worried about something? Invest in a catch can maybe? Is there a way to check the PCV since that is where most blow by goes from my understanding?

You get more blow-by if you're partial throttle under cornering than at WOT.

finch1750 · 03-21-2016, 07:45 PM

Quote:

Originally Posted by CSG David

You get more blow-by if you're partial throttle under cornering than at WOT.

Well that would explain it since thats most of my driving. Would I benefit from a catch can you think? Or just take a lesson from you and @CSG Mike on driving WOT more

lol

CSG David · 03-21-2016, 08:25 PM

Quote:

Originally Posted by finch1750

Well that would explain it since thats most of my driving. Would I benefit from a catch can you think? Or just take a lesson from you and @CSG Mike on driving WOT more

lol

Depends how coated the walls are. It's probably a good idea to get a catch can setup at this point.

finch1750 · 03-21-2016, 08:28 PM

Quote:

Originally Posted by CSG David

Depends how coated the walls are. It's probably a good idea to get a catch can setup at this point.

The walls of the tube were actually pretty clean except for the very end. But a catch can seems like cheap insurance. Thanks for the advice.

Ashikabi · 03-22-2016, 11:52 PM

Buy it now!

03-21-2016, 07:34 PM	#1
finch1750 Undisputed El Presidente Join Date: Jun 2012 Drives: Zenki 37J ZN6 Location: Stockton, CA Posts: 11,593 Thanks: 9,403 Thanked 9,411 Times in 5,270 Posts Mentioned: 374 Post(s) Tagged: 33 Thread(s)	Blow by at breather tube So took off my GS intake and saw this. Seems excessive especially considering it's the breather tube. I'm at 91k miles NA with a decent amount of aggresive use (canyon, autox, etc). I don't know a ton about this so coming to you guys for help. Should I be worried about something? Invest in a catch can maybe? Is there a way to check the PCV since that is where most blow by goes from my understanding? __________________ "Just like how a strut bar somehow enables you to corner 20MPH faster around a cloverleaf on-ramp, when the reality is, you can do it already but you just don't have to balls to do it." - CSG David

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03-22-2016, 11:52 PM	#6
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